An Enterable is an object that exists in one location, and which can be entered to take an actor to another location. Enterables are used for things such as the outsides of buildings, so that the building can have a presence on its outside and can be entered via a command like "go into building".

An Enterable isn't a connector, but points to a connector. This type of object is most useful when there's already a connector that exists as a separate object, such as the door to a house: the house object can be made an Enterable that simply points to the door object.